WASHINGTON -- Almost a year after Gov. Chris Christie ended his presidential campaign following a dismal showing in New Hampshire, his committee continued to operate, spending $21,323 during the first three months of 2017.

Federal Election Commission filings show that the biggest expenditure, $20,000, went to Gibbons PC, the law firm where long-time adviser Bill Palatucci served as special counsel.

That helped whittle down the committee's campaign debt to $150,505 at the end of March, compared with $170,505 at the end of December.

While the campaign debt remained on the books in the latest FEC report, the campaign committee settled with all of its other vendors, according to campaign treasurer Ron Gravino. The committee was waiting for FEC approval of its plan, Gravino said earlier this year.

In the last three months, Gravino's consulting firm received $439 for office supplies. The committee also paid $305 in bank fees.

The funds came out of the $27,657 the Christie committee still had in the bank at the end of 2016. The committee's balance was down to $6,334 as of March 31.

The pro-Christie super political action committee America Leads changed its filing schedule and next will report its finances in July. His leadership PAC, Leadership Matters for America, did not report any spending during the first three months of the year.

Christie endorsed Donald Trump shortly after his own campaign failed. Trump hosted a May fundraiser in Lawrenceville to help Christie pay down his campaign debt and succeeded in whittling down the debt from $383,518 at the end of April.

Trump announced at the event that "Chris Christie paid off his entire campaign debt tonight." The announcement turned out to be premature.